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Question 55 Discussion

Refer to the exhibits. Three FortiSwitch devices in standalone mode are interconnected. The CLI command diagnose stp instance list is executed on Core-2. Based on the output shown in the exhibit, what can you conclude about Core-2? (Choose one answer)

  • A. Core-2 has received Bridge Data Protocol Data Unit (BPDU) from the root bridge.
  • B. Core-2 is the designated bridge for all VLANs.
  • C. Core-2 is blocking all ports in the Spanning Tree Protocol (STP) topology.
  • D. Core-2 provides an alternate path to the root bridge.
Correct Answer: A

Brave-Dump Clients Votes

A 100%

Comments



javaughn Bryan 2025-12-18 17:45:26

Selected Answers: A


A is correct.

From the STP output on Core-2, it is evident that Core-2 has identified a root bridge with MAC address 02090f000701 and priority 4096, which is different from its own bridge MAC 02090f000702 and priority 32768. Core-2 has designated port3 as its root port, which is in a FORWARDING state, indicating that it is actively receiving Bridge Protocol Data Units (BPDUs) from the root bridge. This reception of BPDUs allows Core-2 to maintain accurate spanning tree information and correctly determine the root bridge, confirming that Core-2 has indeed received BPDUs from the root bridge.